> (The legs actually look like they have never had casters. I don't know that story.) > > Kent Is the leg bored out for one? If not, bore a hole of appropriate size for the following. A 1/2" bolt, inserted from underneath through the dolly arm and leg "corral", whatever the nomenclature, through a wood block, fitting the corral, and of an appropriate thickness to produce the desired overall height, through a T nut installed in the top of this block, and extending maybe 1.5" up into the leg. Tighten the bolt to clamp the block to the dolly arm, and set the piano (leg) on the bolt to keep the leg on the block. End of problem with the existing dolly and a minimum of cash, blood, brain cell, and angst outlay for a workable solution. It won't matter how tall or short the block is for stability, because it's clamped to the dolly arm with the bolt and T nut, and the bolt spears the leg to keep that where it belongs. If anyone manages to break this setup or bounce the legs off of the bolt, nothing is safe and we'd be better advised to sell insurance for a living. My take, Ron N
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